When you're stressed, the last thing you want to do is exercise. But these 11 easy moves will help you feel better fast

Throw some heavy books in a backpack and wear it while you perform a simple squat. Put on the backpack and stand tall, feet shoulder-width apart and arms extended straight in front of you or on your hips. Keep your chest up as you lower your body as far as it can go, keeping your knees above your feet as you bend them and pushing your hips back. Slowly push yourself back up to the starting position, focusing on the quad, hamstring, butt, and ab muscles you're engaging. Bonus: You can also perform a weighted plank by wearing the book-filled backpack; it'll give you an added dose of intensity.